#218A8F#218A8F

#218A8F is a mid, moderate teal. Relative luminance 0.205; OKLCH L 57.9% C 0.090 H 199.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#218A8F
RGB	rgb(33, 138, 143)
HSL	hsl(183, 63%, 35%)
HSV	hsv(183, 77%, 56%)
CMYK	cmyk(76.9%, 3.5%, 0%, 43.9%)
CIE-LAB	lab(52.38, -26.52, -11.03)
CIE-LCH	lch(52.38, 28.72, 202.58°)
OKLab	oklab(57.94% -0.0849 -0.0306)
OKLCH	oklch(57.94% 0.09 199.8)
XYZ	xyz(14.6714, 20.4817, 29.1614)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#218A8F #8F2621

analogous

#218F5D #218A8F #21538F

triadic

#218A8F #8F218A #8A8F21

tetradic

#218A8F #5D218F #8F2621 #538F21

square

#218A8F #5D218F #8F2621 #538F21

split-complementary

#218A8F #8F2153 #8F5D21

monochromatic

#0A2A2C #165A5D #218A8F #2CBAC1 #53D1D7

Accessibility & contrast

On white

4.12

#218A8F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#218A8F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #218A8F

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##218A8F	#FFFFFF	#000000	##000000
##218A8F	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F838F

Deuteranopia (green-blind)

#707890

Tritanopia (blue-blind)

#008F8B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #218a8f;
/* rgb */ color: rgb(33, 138, 143);
/* oklch */ color: oklch(57.9% 0.090 199.8);

Tailwind

colors: {
  custom: {
    50: '#70acaf',
    500: '#218a8f',
    950: '#000000',
  },
}

SCSS

$custom: #218a8f;
$custom-light: #70acaf;
$custom-dark: #000000;

JSON

{
  "hex": "#218a8f",
  "rgb": {
    "r": 33,
    "g": 138,
    "b": 143
  },
  "hsl": {
    "h": 182.727,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.57941,
    "c": 0.09028,
    "h": 199.8
  },
  "luminance": 0.20483
}

Semantic roles & 50–950 ramp

primary

#218A8F

secondary

#BB5651

accent

#4A42E6

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#091010

muted

#7B7F7F

Preview Lab

Preview with #218A8F

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →